do you mean 'pixelate' aka 'breakup'
its interference from the motor, is your TV 12v and plugged into a 12v wall Antenna outlet, the pump is putting interference onto the 12v feeding the TV
or is 120v
how are you powering the TV
I can explain it to you.
But I Can Not understand it for you !
....
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1997 F53 Bounder 36s